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Our take on the Polk Audio Blackstone TL1
by Crutchfield's Kristen Schaub

Polk's ultra-compact Blackstone TL1 proves that you don't need a big speaker to enjoy big sound. Thanks to Polk's decades of speaker-building expertise, along with some pretty advanced driver technology, you'll experience effortlessly clear sound. And if you own a flat-panel TV, the TL1's high-gloss finish will complement it perfectly.

Polk's ultra-compact Blackstone TL1 proves that you don't need a big speaker to enjoy big sound. Thanks to Polk's decades of speaker-building expertise, along with some pretty advanced driver technology, you'll experience effortlessly clear sound. And if you own a flat-panel TV, the TL1's high-gloss finish will complement it perfectly.

Advanced technology produces astonishingly realistic sound
The "TL" refers to Polk's "Time Lens" technology, which aligns the drivers in such a way that all the sounds reach your ears at the same time. This improves the speaker's imaging and soundstaging, so that you'll start to forget you're watching a movie and really feel like you're part of it. An "acoustic lens" in the speaker grille disperses sound waves in a way that makes your movie and music soundtracks sound larger and more open.

The "aperiodic-tuned rear port" controls air flow in and out of the enclosure, much like a breathable membrane. It gives the TL1 the acoustic benefits of both a sealed and a ported enclosure, including better bass extension and a pleasing mid-bass boost. It also means you can place this speaker in the open or against a wall, and still get great sound.

Easy speaker placement
The TL1 has a keyhole slot in the back for easy mounting to your wall straight from the box. You can also use the threaded insert to attach it to an optional speaker bracket or stand. Create your own home theater system using a combination of black TL1s in the front of your room and white TL1 surrounds in the back. Or add a pair in either color to the TL1600 system to get even more engaging, seven-channel surround sound.

Product Research

Driver Technology

Dynamic Balance Driver Technology: Polk Audio's patented Dynamic
Balance process allows Polk to design their drivers specifically for flatter
frequency response, revealing the sharpest details and a more lifelike
transparency, with absolutely no strain even at high volume. It's a bold, rich,
warm, and lifelike sound.

Time Lens Technology: The sophisticated laser alignment of the
"acoustic center" of the Blackstone TL tweeters with their accompanying drivers
results in far superior imaging. The acoustic centers of the tweeter and
mid-range woofer are aligned, creating a crisp accurate soundstage. The acoustic
centers of the tweeter and mid-bass driver are located in the same plane for
superior imaging, while the acoustic lens incorporated in the grille smoothes
the tweeter's frequency response.

Frequency Response: The overall frequency response is
120Hz to 22kHz and the -3dB frequency response is 135Hz to 20kHz.

Additional Speakers: The TL1 satellite speaker will require
a powered subwoofer (107PSW111,
sold separately) for full-range sound. You can also add addition TL1 series
speakers for 2.1, 3.1, 5.1, 6.1 and 7.1 channel home theater configurations.

Enclosure Design

Curved Enclosure Design: The Polk Audio Black Stone TL1 satellite
speaker employs non-parallel surfaces that not only lead to a stronger, more
rigid and acoustically inert enclosure, but they also result in less audible
coloration from internal surface resonances.

Integrated Acoustic Lens: An innovative acoustic lens incorporated
into the grille produces a high frequency response so smooth that it delivers a
balanced, realistic performance. An acoustic lens is molded into the back of the
speaker grille and helps create imaging frequency balance previously impossible
in small high-performance satellite speakers.

Aperiodic-Tuned Rear Port: An aperiodic-tuned rear port enables better
blending with a subwoofer. This design combines the bass extension of an
acoustic suspension enclosure with the mid-bass boost of a ported enclosure by
controlling airflow through the port for better extension without distortion.

High-Gloss Finish: The Polk Audio TL1 satellite speaker features a
durable, deep automotive-strength high-gloss finish that matches today's most
stylish flat-panel TVs. The TL1 is available in a high-gloss black or white
finish.

Connections

5-Way Binding Posts: The Polk Audio Black Stone TL1 is equipped with
one pair of 5-way binding posts to ensure a secure connection to many types of
speaker cables and connectors. The binding post terminals will accept banana
plugs (single or dual), pin-connectors, spade-connectors, and bare wire (18-12
AGW).

Mounting Options

Rubber Feet: The Polk Audio TL1 features three integrated rubber feet
so you can sit the speaker on a stand or shelf securely.

Wall Mountable: The TL1 satellite speaker feature a single keyhole
slot on the back of the cabinet for wall-mounting the speaker without any
additional wall-mount bracket (mounting screws not supplied). There is also a
1/4"-20 threaded insert on the back of the loudspeaker for mounting the speaker
to the wall using an optional articulating bracket (sold separately).

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.